Grill guard for a vehicle



FIG. 1 is a front elevation view of a grill guard for a vehicle;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevation view, the left side elevation view being a mirror image thereof;

FIG. 4 is a rear elevation view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a grill guard for a vehicle, as shown. 